Journal-bearing



(No Model.)

S. A. BEMIS.

JOURNAL BEARING.

No. 425,973. Patented Apr. 22, 1890.

Ewe/war,

UNITED STATES PATENT OFFICE.

SUMNER A. BEMIS, OF SPRINGFIELD, MASSACHUSETTS.

JOURNAL-BEARING.

SPECIFICATION forming part of Letters Patent No. 425,973, dated April 22, 1890.

Application filed January 21, 1890. Serial No. 337,584- (No model.)

To all whom it may concern:

Be it known that I, SUMNER A. 13EMIs,a citizen of the United States, residing at Sprin gfield, in the county of llampden and State of Massachusetts, have invented new and useful Improvements in J ournal-Bearings, of which the following is a specification.

This invention in journal-boxes relates particularly to means for confining the box in its support upon the journal of the car-wheel axle, whereby it is preventedfrom moving or shifting thereon either longitudinally or laterally thereof, the particular object of the invention being to provide a means in the journal-box for the purpose stated, which is very simple in construction and application, and which, while it exerts a most efficientaction to the end sought, does not constitute at the journal any such material amount of friction as would render its use disadvantageous, which objectionable feature mentioned has been commonly found in devices heretofore employed for the same purpose; and the invention consists, essentially, in the combination, with the j ournal-box and the axle, of a stop-key having an engagement with the journal-box and adapted. to engage with said axle, and a spring applied between one part of the wall of the j ournal-box and said key, whereby the latter is firmly held in its engagement with another part of the journ al-box and with the axle.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters and figures of reference indicate corresponding parts in all the Views.

Figure 1 is a central vertical sectional view of the outer end portion of the axle, journalbox, and key, the same being sufficient for illustrating the construction and application of the confining-key. Fig. 2 is an end view of the parts shown in Fig. 1, some of the parts being, however, broken out and shown in vertical cross-section and some of the internal parts appearing in end elevation. Fig. 3 is a perspective view of the key as shown by 1tself; and Fig. 4r. is a central vertical section of a key having the essentials of the one shown in the preceding figures, but involving a slight modification as to the details of con struction.

In the drawings, A represents the axle provided with the annular and peripheral groove a. The journal-box B, which is to be of any usual or approved construction, incloses the journal, as usual. As shown in Fig. 1, the top Z) of the journal-box terminates inside of the end of the axle, the end edge 10 of said top, as shown, being about coincident with the rear of saidgroove a, and the lower part of the box is projected longitudinally beyond the end of the axle and the cover C, which has substantially a pivotal engagement, as at (Z, with the top of the box near its end 10, thence continues outwardly or longitudinally and downwardly, substantially as shown, and by its outer extremity rests upon the ledge f at the end of the box. The said cover, which when in place forms the end wall of the journal-box, is provided with the niche or pocket g, the lower wall h of which constitutes a rest for the head of the bolt i, which by its shank passes through said lower wall and through the stock of the said bottom and extended portion of the box and is confined by the nut 2".

The stop-key D consists of the upper transverse portion m and the legs a n extending therefrom. The lines of the inner sides of the legs at their upper parts merge the one into the other and form a semicircle corresponding to the peripheral surface of the axle at the base of the groove a. The inner face of the stop-key near its top edge is adapted, when the pending members of the key straddle the grooved part of the axle, to bear upon the said end 10 of the journal-box top, and one or more springs Z are applied between a suitable part of the journal-box and said stopkey, whereby to the latter is imparted a force both downwardly and rearwardly, so that it is caused to retain its position of bearing against the end of the journal-box top and of engagement with said axle-groove.

As specifically shown, the key is provided with two fiat or plate springs, each of which by its rear end is rigidly secured to the top of the cross portion at of the key, and is thence extend ed outwardly or toward the end of the box, and normally the said spring, when the key is in place about the grooved axle and when not compressed by the said cover, is held projected or sprung above and outside of the surface occupied by and comprised in the inner face of the said cover when the same is secured in its place, and all so that when the said cover is so confined in its place a very considerable compression or reaction will be imparted to the spring, the effect of which, as and for the purpose stated, is to maintain the said key downwardly and rearwardly to its engagement and bearing with and upon the grooved axle and the end of the journal-box top.

The means employed, as shown in Figs. 2 and 3, for securing the springs to the key-top within the surface thereof merely consists in the shallow grooves or channels 15 in the keytop, provided with the overhanging lips 16.

When the springs are inserted by their ex-- tremities within said channels and under the said lips, the lips are hammered down to firmly bind upon or grip the springs, and in Fig. 4c a slight modification is shown, which consists merely in a different way of securing thespring to the keythat is to say, the key is provided in or through its thickness with a socket, into which the end of the spring is passed or driven, the same being secured either by the bind between the walls of the socket and the spring or by soldering or brazing.

What I claim as my invention is 1. In a journal-bearing, the combination, with a j ournal-box and the axle having a shoulder-like bearing-surfacesuch, for instance, as formed by the wall of the groove (L-0f a stop-key comprising separated pendin g portions, which key has an engagement with the box and by said pending portion has an engagement with the shoulder-like portion of the axle, and a spring applied between a suitable part of the box and said stop-key to constrain the latter in its operative relation, for the purpose set forth.

2. In a journal-bearing, the combination, with the j ournal-box having the top terminating inside of the end of the box proper and having the cover pivotally engaged therewith and extending outwardly and downwardly from such place of engagement, of the axle having the annular peripheral groove therein, and the stop-key comprising the upper transverse portion which bears upon the end of the box-top, and the separate legs adapted to engage said grooved axle, and one or more springs affixed to said key and adapted to lie against and to be compressed by the under side of said cover, substantially as and for the purpose set forth.

3. A stop-key for a journal-bearing, consistin g of the upper transverse and separated pending portions, and one or more platesprings by one end secured to said upper portion and extending angularly therefrom, for the purpose set forth.

SUMNER A. BEMIS.

Vitne'sses:

H. A. OHAPIN, WVM. S. BELLoWs. 

